Microwave Sensors

Play an AI-generated podcast conversation about this lesson

What is the nominal ground range resolution of the RADARSAT 1 SAR sensor?

23 m (correct)

10 m

100 m

5.7 m

Which of the following orbital SAR systems has a repeat cycle of 17 days?

RADARSAT 1

ERS-2 (correct)

ALOS PALSAR

Envisat 1

What is the swath width of the SAOCOM SAR sensor?

35 km (correct)

30 km

10 km

100 km

Which of the following polarization modes is NOT available on the RADARSAT 2 SAR sensor?

LH Signup and view all the answers

What is the wavelength of the Envisat 1 ASAR SAR sensor?

5.6 cm Signup and view all the answers

What is a major advantage of radar systems in terms of illumination?

They are a controllable source of illumination Signup and view all the answers

What is the primary factor that affects the radar cross-section of a target?

All of the above Signup and view all the answers

What is the typical resolution of images produced by radar systems?

3-10 m Signup and view all the answers

What is the primary function of an antenna in a radar system?

To switch between transmission and reception of signals Signup and view all the answers

What is the term for the distance between the radar antenna and the target?

Range to target Signup and view all the answers

What is the primary advantage of a spaceborne SAR compared to an airborne SAR with a similar swath width?

More uniform illumination geometry over the whole swath Signup and view all the answers

What is the purpose of sampling the return magnitude and phase in radar operation?

To provide a coherent radar operation Signup and view all the answers

What is represented by the bright tones in a radar image?

High backscatter values Signup and view all the answers

What is the primary information provided by radar images?

Physical properties of the target Signup and view all the answers

What is the format of the raw data file in a radar system?

A two-dimensional array of complex values Signup and view all the answers

What is the typical revisit period for a spaceborne SAR system?

3-35 days Signup and view all the answers

What correction is necessary during processing of spaceborne SAR data due to the Earth's shape?

Correction for earth curvature Signup and view all the answers

What is the name of the first civilian spaceborne SAR system launched in 1978?

SEASAT Signup and view all the answers

Which polarization mode is used by the SEASAT SAR system?

HH Signup and view all the answers

What is the wavelength of the radar signal used by the Almaz SAR system?

10 cm Signup and view all the answers

Microwave Sensors_Lecture 1

Podcast Beta

Questions and Answers